Add advice about keychain credentials
Add advice about keychain credentials

Fixes #50050. Closes #50059.

base10/homebrew,OJFord/homebrew,chadcatlett/homebrew,Homebrew/linuxbrew,dplarson/homebrew,scorphus/homebrew,gawbul/homebrew,Asuranceturix/homebrew,pcottle/homebrew,SuperNEMO-DBD/cadfaelbrew,dplarson/homebrew,Angeldude/linuxbrew,dutchcoders/homebrew,filcab/homebrew,elgertam/homebrew,scorphus/homebrew,quantumsteve/homebrew,sakra/homebrew,michaKFromParis/homebrew-sparks,influxdata/homebrew,skinny-framework/homebrew,booi/homebrew,liamstask/homebrew,scorphus/homebrew,emcrisostomo/homebrew,tutumcloud/homebrew,afh/homebrew,Asuranceturix/homebrew,base10/homebrew,influxdb/homebrew,OJFord/homebrew,filcab/homebrew,filcab/homebrew,nandub/homebrew,mkrapp/homebrew,ralic/homebrew,frodeaa/homebrew,reelsense/homebrew,saketkc/linuxbrew,frodeaa/homebrew,theeternalsw0rd/homebrew,ablyler/homebrew,Linuxbrew/linuxbrew,brunchboy/homebrew,3van/homebrew,gawbul/homebrew,deorth/homebrew,ralic/homebrew,theeternalsw0rd/homebrew,ilovezfs/homebrew,dericed/homebrew,tschoonj/homebrew,brunchboy/homebrew,brunchboy/homebrew,yumitsu/homebrew,ExtremeMan/homebrew,yumitsu/homebrew,influxdb/homebrew,tschoonj/homebrew,Homebrew/homebrew,muellermartin/homebrew,marcwebbie/homebrew,skinny-framework/homebrew,dutchcoders/homebrew,totalvoidness/homebrew,influxdata/homebrew,sjackman/linuxbrew,benjaminfrank/homebrew,sjackman/linuxbrew,getgauge/homebrew,quantumsteve/homebrew,totalvoidness/homebrew,georgschoelly/homebrew,dutchcoders/homebrew,dickeyxxx/homebrew,OJFord/homebrew,afh/homebrew,quantumsteve/homebrew,Homebrew/linuxbrew,muellermartin/homebrew,base10/homebrew,Asuranceturix/homebrew,tschoonj/homebrew,AlexejK/homebrew,Homebrew/linuxbrew,gawbul/homebrew,cscetbon/homebrew,michaKFromParis/homebrew-sparks,sjackman/linuxbrew,ralic/homebrew,ExtremeMan/homebrew,sjackman/linuxbrew,influxdata/homebrew,sferik/homebrew,nandub/homebrew,BrewTestBot/homebrew,ablyler/homebrew,sakra/homebrew,Homebrew/homebrew,dickeyxxx/homebrew,georgschoelly/homebrew,liamstask/homebrew,Linuxbrew/linuxbrew,ablyler/homebrew,michaKFromParis/homebrew-sparks,frodeaa/homebrew,mkrapp/homebrew,dericed/homebrew,josa42/homebrew,reelsense/linuxbrew,getgauge/homebrew,josa42/homebrew,dplarson/homebrew,gnubila-france/linuxbrew,Homebrew/homebrew,tutumcloud/homebrew,mkrapp/homebrew,Angeldude/linuxbrew,reelsense/linuxbrew,gnubila-france/linuxbrew,3van/homebrew,josa42/homebrew,lrascao/homebrew,dickeyxxx/homebrew,theeternalsw0rd/homebrew,BrewTestBot/homebrew,joshfriend/homebrew,dericed/homebrew,afh/homebrew,3van/homebrew,optikfluffel/homebrew,dplarson/homebrew,totalvoidness/homebrew,Asuranceturix/homebrew,georgschoelly/homebrew,elgertam/homebrew,Angeldude/linuxbrew,Homebrew/homebrew,afh/homebrew,dickeyxxx/homebrew,AlexejK/homebrew,elgertam/homebrew,booi/homebrew,emcrisostomo/homebrew,quantumsteve/homebrew,benjaminfrank/homebrew,emcrisostomo/homebrew,lrascao/homebrew,muellermartin/homebrew,base10/homebrew,Angeldude/linuxbrew,optikfluffel/homebrew,cscetbon/homebrew,sakra/homebrew,influxdb/homebrew,lrascao/homebrew,BrewTestBot/homebrew,nandub/homebrew,influxdb/homebrew,muellermartin/homebrew,frodeaa/homebrew,deorth/homebrew,sferik/homebrew,getgauge/homebrew,benjaminfrank/homebrew,gnubila-france/linuxbrew,emcrisostomo/homebrew,pcottle/homebrew,sakra/homebrew,dutchcoders/homebrew,OJFord/homebrew,filcab/homebrew,ilovezfs/homebrew,Homebrew/linuxbrew,joshfriend/homebrew,brunchboy/homebrew,BrewTestBot/homebrew,SuperNEMO-DBD/cadfaelbrew,skinny-framework/homebrew,joshfriend/homebrew,saketkc/linuxbrew,pcottle/homebrew,pcottle/homebrew,saketkc/linuxbrew,cscetbon/homebrew,scorphus/homebrew,SuperNEMO-DBD/cadfaelbrew,elgertam/homebrew,tutumcloud/homebrew,georgschoelly/homebrew,getgauge/homebrew,chadcatlett/homebrew,ExtremeMan/homebrew,tschoonj/homebrew,ilovezfs/homebrew,totalvoidness/homebrew,SuperNEMO-DBD/cadfaelbrew,liamstask/homebrew,nandub/homebrew,yumitsu/homebrew,booi/homebrew,benjaminfrank/homebrew,tutumcloud/homebrew,marcwebbie/homebrew,Linuxbrew/linuxbrew,reelsense/homebrew,sferik/homebrew,marcwebbie/homebrew,marcwebbie/homebrew,pcottle/homebrew,influxdata/homebrew,ralic/homebrew,ExtremeMan/homebrew,dericed/homebrew,liamstask/homebrew,gnubila-france/linuxbrew,reelsense/homebrew,AlexejK/homebrew,Asuranceturix/homebrew,ilovezfs/homebrew,chadcatlett/homebrew,deorth/homebrew,AlexejK/homebrew,reelsense/linuxbrew,theeternalsw0rd/homebrew,skinny-framework/homebrew,ablyler/homebrew,3van/homebrew,saketkc/linuxbrew,reelsense/linuxbrew,reelsense/homebrew,optikfluffel/homebrew,sferik/homebrew,optikfluffel/homebrew,Linuxbrew/linuxbrew